mirror of
https://github.com/ukui/kernel.git
synced 2026-03-09 10:07:04 -07:00
Gcc might re-order MMIO accessors vs. surrounding consistent memory accesses, which is a "bad thing", and could break drivers. This fixes it by adding a "memory" clobber to the MMIO accessors, which should prevent gcc from doing that reordering. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>